linuxdebug/arch/x86/kernel/tracepoint.c

22 lines
407 B
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2013 Seiji Aguchi <seiji.aguchi@hds.com>
*/
#include <linux/jump_label.h>
#include <linux/atomic.h>
#include <asm/trace/exceptions.h>
DEFINE_STATIC_KEY_FALSE(trace_pagefault_key);
int trace_pagefault_reg(void)
{
static_branch_inc(&trace_pagefault_key);
return 0;
}
void trace_pagefault_unreg(void)
{
static_branch_dec(&trace_pagefault_key);
}